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Accumulated Other Comprehensive Income (Significant Amounts Reclassified Out Of Each Component Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net realized gains on sales of securities $ 71 $ 254
Income tax expense (3,286) (2,608)
Net income 15,080 14,215
Amount Reclassified From Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized gains and losses on available-for-sale securities [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net realized gains on sales of securities 71 254
Income tax expense (15) (53)
Net income $ 56 $ 201